RC-135
Staff Sgt. William Bryan checks the oxygen flow inside a mask aboard a RC-135 Rivet Joint aircraft Jan. 30 in Southwest Asia. Cockpit crews, intelligence experts, electronic warfare officers, and in-flight maintenance technicians have rotated into and out of Southwest Asia along with the aircraft for a variety of duties over the past 17 years. Sergeant Bryan is an airborne systems engineer with the 763rd Expeditionary Reconnaissance Squadron and is deployed from Offutt Air Force Base, Neb. (U.S. Air Force photo/Senior Airman Domonique Simmons)